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Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
python · skirpichev · May 11, 2025 · Jun 1, 2025 · Jun 1, 2025 · Jun 1, 2025
commit cea09b7da01460b9d2dfdf92621daddb1ae35b9c
diff --git a/Doc/library/cmath.rst b/Doc/library/cmath.rst
@@ -38,10 +38,10 @@ the function is then applied to the result of the conversion.
       1.4142135623730951j
 
 
-Most functions computes and returns the C99 Annex G recommended result.  If the
+Most functions compute and return the C99 Annex G recommended result.  If the
 standard recommends raising ``FE_DIVBYZERO`` or ``FE_INVALID`` floating-point
-exceptions --- the :exc:`ValueError` is raised and recommended result available
-as the ``value`` attribute of the exception object.
+exceptions --- a :exc:`ValueError` is raised and the recommended result
+is available as the ``value`` attribute of the exception object.
 
 
 ====================================================  ============================================

diff --git a/Doc/whatsnew/3.15.rst b/Doc/whatsnew/3.15.rst
@@ -93,7 +93,7 @@ cmath
 -----
 
 * Provide C99 Annex G return values for :mod:`cmath`'s functions as the
-  "value" attribute of the ValueError exception object.
+  ``value`` attribute of the :exc:`ValueError` exception object.
   (Contributed by Sergey B Kirpichev in :gh:`133895`.)
 
 

diff --git a/Modules/cmathmodule.c b/Modules/cmathmodule.c
@@ -43,7 +43,7 @@ if (errno == EDOM) {
     if (value) {
         PyObject_SetAttrString(exc, "value", value);
     }
-    Py_DECREF(value);
+    Py_XDECREF(value);
     PyErr_SetRaisedException(exc);
     goto exit;
 }
@@ -907,7 +907,7 @@ cmath_log_impl(PyObject *module, Py_complex x, PyObject *y_obj)
             if (value) {
                 PyObject_SetAttrString(exc, "value", value);
             }
-            Py_DECREF(value);
+            Py_XDECREF(value);
             PyErr_SetRaisedException(exc);
         }
         return ret;